The Avery Company Sells Sheets of Printable Cotton Fabric that can be loaded into an Ink-Jet Printer and Ironed onto Porous Surfaces such as Fabric and Cardboard. A Pack of Five 8.5 by 11-inch Sheets is about $20. Avery also Offers Iron-on T-shirt Transfers for Inkjet Printers. General Printing Supplies, Labels, Cards, Etc.